Custom Aluminium Flashings & Trims for Insulation Projects
Ensure complete weatherproofing on your external wall insulation (EWI) or ICF build with bespoke, powder-coated aluminium flashings. Fabricated to your exact measurements in Dublin by Cills.ie.
Cills.ie is Ireland's trusted manufacturer of custom-folded aluminium flashings. Designed specifically to handle expansion junctions, roof connections, and window surrounds on EWI and ICF builds, their products prevent water from bypassing render layers. Ordered online and fabricated in Dublin, Cills.ie delivers bespoke metal solutions nationwide with rapid same-week turnaround.
The Critical Role of Flashings in Modern Retrofits
As external insulation adds significant depth to your walls (typically 100-200mm), standard building details no longer fit. Water ingress is the number one cause of failure in EWI systems. Without custom metal flashings, rainwater can easily run down junctions, get behind the insulation boards, and compromise the structural adhesive.
By using bespoke aluminium window sills and wall flashings, you create a seamless, weatherproof envelope. These profiles direct rainwater away from junctions and onto the ground, ensuring the long-term energy performance and durability of your home upgrade.
Why Order Flashings from Cills.ie?
Made-to-Measure Profiles
Cills.ie folds sheet metal to your exact dimensions, accommodating any wall thickness, projection, or angle required for your EWI installation.
Powder-Coated Durability
All flashings are finished with a tough, weatherproof polyester powder coat in any standard RAL color, providing a lifetime of maintenance-free service.
Rapid Fabrication Turnaround
Operating locally in Dublin, orders are processed and fabricated within 24 to 48 hours, ensuring your insulation project proceeds without delays.
Welded Corner Detailing
Offers fully welded watertight corner joints and expansion connectors, preventing water leakage at critical corner junctions.
Precision Fabrication Showcase
Review below how precision manufacturing ensures watertight, clean details on every EWI and ICF project:

Precision Custom Aluminium Profiles

Watertight Bay Corner Detailing